Before you____the design of this product, you need to study the market carefully．
| A．memorise | B．confirm | C．order | D．express |
—What are you going to do this weekend?
—________.If time permits，I may go to Shanghai with my friends.
| A．Don’t mention it | B．It doesn’t matter |
| C．Forget it | D．It depends |
I thought the teacher would say something about our exam result but he________it.
| A．doesn’t mention | B．hasn’t mentioned |
| C．wouldn’t mention | D．didn’t mention |
She can’t help________the house because she’s busy making a cake in the kitchen.
| A．to clean | B．cleaning |
| C．cleaned | D．being cleaning |
The official________I thought would be seriously punished received a raise instead.
| A．whomever | B．whoever |
| C．who | D．whom |
The medicine should usually be kept out of the________of children at home.
| A．distance | B．reach |
| C．limit | D．arrival |